Browsing Genetics by Title

Browsing Genetics by Title

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  • The polyphagous shot hole borer beetle : current status of a perfect invader in South Africa 
    Van Rooyen, Elmar; Paap, Trudy; De Beer, Z. Wilhelm; Townsend, Garyn; Fell, Shawn; Nel, Wilma Janine; Morgan, Seamus; Hill, Martin; Gonzalez, Allan; Roets, Francois (Academy of Science of South Africa, 2021-11)
    The polyphagous shot hole borer (PSHB) beetle is a recent invader in South Africa. Together with its fungal symbiont, Fusarium euwallaceae, it can rapidly kill highly susceptible host plants. Its impact is most profound ...
  • Polyphyly and two emerging lineages in the rust genera Puccinia and Uromyces 
    Maier, Wolfgang D.; Wingfield, Brenda D.; Mennicken, Mechthilde; Wingfield, Michael J. (Elsevier, 2007-02)
    The phylogenetic validity of Puccinia and Uromyces, Pucciniaceae, and closely related genera was evaluated using nucLSU rDNA sequences. Using a wide range of rust species with different life cycles and with different host ...
  • Polyploid Arabidopsis species originated around recent glaciation maxima 
    Novikova, Polina Yu; Hohmann, Nora; Van de Peer, Yves (Elsevier, 2018-04)
    Polyploidy may provide adaptive advantages and is considered to be important for evolution and speciation. Polyploidy events are found throughout the evolutionary history of plants, however they do not seem to be uniformly ...
  • Polyploidy : a biological force from cells to ecosystems 
    Fox, Donald T.; Soltis, Douglas E.; Soltis, Pamela S.; Ashman, Tia-Lynn; Van de Peer, Yves (Elsevier, 2020)
    Polyploidy, resulting from the duplication of the entire genome of an organism or cell, greatly affects genes and genomes, cells and tissues, organisms, and even entire ecosystems. Despite the wide-reaching importance ...
  • Polyploidy : an evolutionary and ecological force in stressful times 
    Van de Peer, Yves; Ashman, Tia-Lynn; Soltis, Pamela S.; Soltis, Douglas E. (Oxford University Press, 2021-01)
    Polyploidy has been hypothesized to be both an evolutionary dead-end and a source for evolutionary innovation and species diversification. Although polyploid organisms, especially plants, abound, the apparent nonrandom ...
  • Polyploidy and genome evolution in plants 
    Soltis, Pamela S.; Marchant, D. Blaine; Van de Peer, Yves; Soltis, Douglas E. (Elsevier, 2015-12)
    Plant genomes vary in size and complexity, fueled in part by processes of whole-genome duplication (WGD; polyploidy) and subsequent genome evolution. Despite repeated episodes of WGD throughout the evolutionary history ...
  • Polyploidy breaks speciation barriers in Australian burrowing frogs Neobatrachus 
    Novikova, Polina Yu.; Brennan, Ian G.; Booker, William; Mahony, Michael; Doughty, Paul; Lemmon, Alan R.; Lemmon, Emily Moriarty; Roberts, J. Dale; Yant, Levi; Van de Peer, Yves; Keogh, J. Scott; Donnellan, Stephen C. (Public Library of Science, 2020-05-11)
    Polyploidy has played an important role in evolution across the tree of life but it is still unclear how polyploid lineages may persist after their initial formation. While both common and wellstudied in plants, polyploidy ...
  • Population diversity and relatedness in sugarbirds (Promeropidae : Promerops spp.) 
    Haworth, Evan S.; Cunningham, Michael J.; Tjorve, Kathleen M. Calf (PeerJ, 2018-06)
    Sugarbirds are a family of two socially-monogamous passerine species endemic to southern Africa. Cape and Gurney’s Sugarbird (Promerops cafer and P. gurneyi) differ in abundance, dispersion across their range and in the ...
  • Population genetic analyses of complex global insect invasions in managed landscapes : a Leptocybe invasa (Hymenoptera) case study 
    Dittrich-Schroder, Gudrun; Hoareau, Thierry B.; Hurley, Brett Phillip; Wingfield, Michael J.; Lawson, S.; Nahrung, H.F.; Slippers, Bernard (Springer, 2018-09)
    Increased rates of movement and the accumulation of insects establishing outside their native range is leading to the ‘global homogenization’ of agricultural and forestry pests. We use an invasive wasp, Leptocybe invasa ...
  • Population genetic analysis and phylogeny reconstruction in Eucalyptus (Myrtaceae) using high-throughput, genome-wide genotyping 
    Steane, Dorothy A.; Nicolle, Dean; Sansaloni, Carolina P.; Petroli, Cesar D.; Carling, Jason; Kilian, Andrzej; Myburg, Alexander Andrew; Grattapaglia, Dario; Vaillancourt, Rene E. (Elsevier, 2011-04)
    A set of over 8000 Diversity Arrays Technology (DArT) markers was tested for its utility in high-resolution population and phylogenetic studies across a range of Eucalyptus taxa. Small-scale population studies of E. ...
  • Population genetic diversity in Spirocerca lupi 
    Mitha, Janishtha R. (University of Pretoria, 2014-06)
    Spirocerca lupi is a nematode that parasitises canid species across the world. Infested hosts show symptoms associated with the disease called spirocercosis. The parasite is known to cause significant damage to its final ...
  • Population genetic inference of demographic processes in the African Wild Silk Moth, Gonometa postica (Lasiocampidae) 
    Delport, Wayne (University of Pretoria, 2006-11-07)
    The African Wild Silk moths (Gonometa spp., Lasiocampidae) are species that are presently of particular economic interest in southern Africa. Both Gonometa postica and G. rufobrunnea, two species of African Wild Silk moth ...
  • Population genetic structure of the parasitic nematode Spirocerca lupi in South Africa 
    Greeff, Jaco M. (Jacobus Maree); Reid, Kerry; Gagjee, Janishtha R.; Clift, Sarah Jane; De Waal, Pamela Jean (Elsevier, 2018-07)
    Spirocerca lupi is a parasitic nematode of canids and occurs in most tropical and subtropical regions around the world. While its life cycle is well known, insight is lacking about its mating structure within-hosts, genetic ...
  • Population genetics of a lethally managed medium-sized predator 
    Slater, K.; De Jager, Deon; Van Wyk, A.M.; Dalton, Desire Lee; Kropff, Anna S.; Du Preez, Ilse (Wiley, 2022-09)
    Globally, levels of human–wildlife conflict are increasing as a direct consequence of the expansion of people into natural areas resulting in competition with wildlife for food and other resources. By being forced into ...
  • Population structure and diversity of an invasive pine needle pathogen reflects anthropogenic activity 
    Barnes, Irene; Wingfield, Michael J.; Carbone, Ignazio; Kirisits, Thomas; Wingfield, Brenda D. (Wiley Open Access, 2014-09)
    Dothistroma septosporum is a haploid fungal pathogen that causes a serious needle blight disease of pines, particularly as an invasive alien species on Pinus radiata in the Southern Hemisphere. During the course of the ...
  • Population structure and genetic diversity of Rhipicephalus microplus in Zimbabwe 
    Sungirai, Marvelous; Baron, Samantha; Van der Merwe, Nicolaas Albertus (Albie); Moyo, Doreen Zandile; De Clercq, Patrick; Maritz-Olivier, Christine; Madder, Maxime (Elsevier, 2018-04)
    Recently there was an expansion in the geographic range of Rhipicephalus microplus in Zimbabwe. In order to understand gene flow patterns and population structure in this highly invasive and adaptable cattle tick, a ...
  • Population structure of Cylindrocladium parasiticum infecting peanuts (Arachis hypogaea) in Georgia, USA 
    Wright, Louwrance Peter; Davis, Andrew J.; Wingfield, Brenda D.; Crous, Pedro W.; Brenneman, Tim; Wingfield, Michael J. (Springer, 2010-02)
    Cylindrocladium parasiticum is an important pathogen of peanut (Arachis hypogaea) causing the disease Cylindrocladium black rot. The genetic structure of this haploid pathogen was determined for populations associated ...
  • Population structure of non-ST6 Listeria monocytogenes isolated in the red meat and poultry value chain in South Africa 
    Matle, Itumeleng; Mafuna, Thendo; Madoroba, Evelyn; Mbatha, Khanyisile R.; Magwedere, Kudakwashe; Pierneef, Rian Ewald (MDPI, 2020-08)
    Meat products have been implicated in many listeriosis outbreaks globally, however there is a dearth of information on the diversity of L. monocytogenes isolates circulating in food products in South Africa. The aim of ...
  • Population variation in traits of Deladenus siricidicola that could influence the biocontrol of Sirex noctilio in South Africa 
    Mlonyeni, X.O.M. (Xolile Osmond Mnyamezeli); Wingfield, Brenda D.; Greeff, Jaco M. (Jacobus Maree); Hurley, Brett Phillip; Wingfield, Michael J.; Slippers, Bernard (Taylor and Francis, 2018)
    Deladenus siricidicola is the primary biocontrol agent of the invasive woodwasp, Sirex noctilio. The nematode is mass-reared in culture on the S. noctilio symbiotic fungus, A. areolatum, but can also be induced to convert ...
  • A possible centre of diversity in South East Asia for the tree pathogen, Ceratocystis manginecans 
    Fourie, Arista; Wingfield, Michael J.; Wingfield, Brenda D.; Thu, Pham Q.; Barnes, Irene (Elsevier, 2016-07)
    The fungal pathogen, Ceratocystis manginecans, has caused serious canker and wilt disease on Mangifera indica (mango), on legume tree species in Oman and Pakistan and on Acacia spp. in Indonesia. A Ceratocystis species, ...